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Teaching Doppler effect

Doppler effect

Waves emitted from a moving source are perceived are perceived at a higher or lower frequency by a stationary observer.

CK-12 (High School)

ESSENTIAL QUESTION:

What impact does the Doppler Effect have on sound waves?
STANDARDS:
HS-PS4-1 - Frequency, Wavelength & Speed, RST.1 - Analysis & Evidence

DEPTH OF KNOWLEDGE (DOK) LEVELS:

2,3
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